Combined Behavioral and Pharmacologic Treatment of Polydrug Abuse

The primary goal of this study is to determine how contingency management can best be combined with standard or high doses of methadone to increase simultaneous abstinence from heroin and cocaine.

A study of people pmaintained on Methadone using contingency management

Inclusion Criteria:

• Opioid dependence; cocaine use

Exclusion Criteria:

• Medical or psychiatric conditions that would contraindicate participation in a methadone maintenance study; inability to give informed consent; inability to attend clinic seven days a week